BE422353A - - Google Patents
Info
- Publication number
- BE422353A BE422353A BE422353DA BE422353A BE 422353 A BE422353 A BE 422353A BE 422353D A BE422353D A BE 422353DA BE 422353 A BE422353 A BE 422353A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US88073A US2128400A (en) | 1936-06-30 | 1936-06-30 | Transmission line system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE422353A true BE422353A (xx) | 1900-01-01 |
Family
ID=22209244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE422353D BE422353A (xx) | 1936-06-30 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2128400A (xx) |
| BE (1) | BE422353A (xx) |
| GB (1) | GB487282A (xx) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2712646A (en) * | 1945-05-22 | 1955-07-05 | James L Lawson | Dual transmitter system |
| US2532993A (en) * | 1945-06-21 | 1950-12-05 | Rca Corp | Band-pass filter |
| US2462443A (en) * | 1946-01-07 | 1949-02-22 | Rca Corp | Transmission line system |
| US2543973A (en) * | 1946-06-27 | 1951-03-06 | United Air Lines Inc | Plural-frequency coupling unit |
| US2570579A (en) * | 1946-12-06 | 1951-10-09 | Rca Corp | Transmission line system |
| US2600949A (en) * | 1947-01-21 | 1952-06-17 | Rca Corp | Transmission line network |
| US2594055A (en) * | 1949-06-29 | 1952-04-22 | Westinghouse Electric Corp | Antenna coupling system |
| US2635176A (en) * | 1949-09-01 | 1953-04-14 | Rca Corp | Radio-frequency heating system |
| US2713152A (en) * | 1950-06-28 | 1955-07-12 | Rca Corp | Vestigial side band filter |
| BE509377A (xx) * | 1951-02-26 | |||
| DE972113C (de) * | 1951-04-08 | 1959-05-21 | Pintsch Electro G M B H | Elektrische Weiche |
| US2701339A (en) * | 1951-05-01 | 1955-02-01 | Rca Corp | Transmission line filter |
| US2853681A (en) * | 1953-01-30 | 1958-09-23 | Gen Electric | Dual frequency rotatable joint |
| US2837739A (en) * | 1954-07-12 | 1958-06-03 | Stewart Warner Corp | Sense antenna system |
| US2984798A (en) * | 1959-08-26 | 1961-05-16 | Harold E Bryan | Duplexer |
| US3500426A (en) * | 1965-10-22 | 1970-03-10 | Scott & Fetzer Co | Magnetically driven antenna array |
| US3922683A (en) * | 1974-06-24 | 1975-11-25 | Hazeltine Corp | Three frequency band antenna |
| CN1081850C (zh) * | 1995-09-29 | 2002-03-27 | 松下电器产业株式会社 | 功率放大器和通信单元 |
-
0
- BE BE422353D patent/BE422353A/xx unknown
-
1936
- 1936-06-30 US US88073A patent/US2128400A/en not_active Expired - Lifetime
-
1937
- 1937-06-10 GB GB16152/37A patent/GB487282A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB487282A (en) | 1938-06-17 |
| US2128400A (en) | 1938-08-30 |